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Matrix Fabrication for Miniature Cores

IP.com Disclosure Number: IPCOM000090076D
Original Publication Date: 1969-Jan-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Judge, RL: AUTHOR

Abstract

The jig is for holding ferrite cores 2 in an alignment for threading wires through the cores to form a memory array. The jig is formed of laminated metal sheets that are etched to form openings 4 for receiving cores. Uppermost sheet 3 is made of a material such as brass and molybdenum or copper that is .0015 or .002 inches thick. The copper is etched to form the core receiving openings. Other layers 5 are approximately .005 inches thick and are sufficient to make the jig selftsupporting. Sheets 5 are etched to form larger core receiving openings. The larger openings of sheets 5 simplify the alignment with the openings in sheet 3 and also simplify removing broken cores. The combination of thin sheet 3 and a stack of thicker sheets 5 provides a self-supporting jig that has very accurately etched core supporting openings.

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Matrix Fabrication for Miniature Cores

The jig is for holding ferrite cores 2 in an alignment for threading wires through the cores to form a memory array. The jig is formed of laminated metal sheets that are etched to form openings 4 for receiving cores. Uppermost sheet 3 is made of a material such as brass and molybdenum or copper that is .0015 or
.002 inches thick. The copper is etched to form the core receiving openings. Other layers 5 are approximately .005 inches thick and are sufficient to make the jig selftsupporting. Sheets 5 are etched to form larger core receiving openings. The larger openings of sheets 5 simplify the alignment with the openings in sheet 3 and also simplify removing broken cores. The combination of thin sheet 3 and a stack of thicker sheets 5 provides a self-supporting jig that has very accurately etched core supporting openings.

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